Scoring attachment for rotary strawboard-cutting machines.



No. 667,245. Patented Feb 5, 190T "n. a. NALL. SCORING ATTACHMENT FOR ROTARY STRAW BOARD CUTTING MACHINES.

(Application 319d Nov. 98, 1900.)

(No Iqdel.)

w in. 13222 WIT SSES:

Arrbmvsys sitions.

. ROBERT G. NALL, OF SYDNEY, NEW SOUTH WALES.

SCORING ATTACHMENT FOR ROTARY STRAWBOARD-CUTTING MACHINES.

SPECIFICATION forming part of Letters Patent N 0. 667,245, dated February 5, 1901.-

Applioation filed November 23, 1900- $erial No. 37,519. (No model.)

To all whom it may concern:

Be it known that I, ROBERT GREAVES N ALL, a subject of the Queen of Great Britain and Ireland, and a resident of George street, Sydney, in the county of Cumberland and Colony of New South Wales, have invented a certain new and useful Scoring Attachment for R0- tary Strawboard-Outting Machines, of which the following is a specification.

This invention consists of appliances to be used in connection with rotary strawboardcutting machines that are used in the manufacture of cardboard boxes, and is applicable to almost any type of these machines, but is described in this specification where there is an upper and lower rotary cutting-disk. The invention consists in an upper and a lower curved arm, which revolve on an upper and a lower longitudinal shaft. The upper curved arm carries a cutting-disk of V-section and the lower arm carries a roller, against which the upper cutting-disk will very nearly impinge. When notin use, the two curved arms may be swung back clear of the cutting appliances and lie upon rest-bars, Where they may remain until they are required for scoring or other purposes. Most of the parts may be adjusted as required.

In the accompanying drawings, Figure l is a transverse vertical section of a common type of a rotary strawboard-cutting machine and showing the new attachment in two po- Fig. 2 is a front elevation of the essential parts of the machine, showing the relative positions of the shafts of the cuttingdisks and the new scoring appliances.

a is the head-stock, in which the several rotating shafts have their bearings. 17 is the upper cutting-disk shaft. ting-disk shaft. 01 is the upper cutting-disk, and e is the lower cutting-disk, which work together to cut the board, as shown in Fig. 2. Up to this point the machine presents no features of novelty.

Above and below are two shafts f g, and upon these shafts are secured in any suitable manner two curved arms h j. These curved arms may be swung back, as shown by the indicator-circles and by dotted lines, so as to repose upon the rest-bars Z. When the curved arms hj are required to be used, they will occupy the positions shown by the full 0 is the lower cutlines in the drawings. The curved arms may be removed from their respective shafts by unscrewing the set-screws m 'n and swinging them back on their hinges m n. The setscrews will also tighten the curved arms on their respective shafts when the arms have been adjusted for scoring a board at any required distance from the disk knives d e. The lower extremity of the upper curved arm his provided with a scoring-disk o and the lower curved arm j is provided with a roller p, against which the disk knife 0 will very nearly impinge. The lower curved armj is made longer and has a larger curve than the upper curved arm h, so that its forward end shall rest upon a ledge p on a longitudinal bar, and in order to prevent lateral movement of the armj this forward end is provided with a dowel 19 which will fall into a corresponding recess in the ledge 19. The ledge 19 will be positioned so that the dowel shall be sure to fall into a recess. Other means equally good, or perhaps better, may be adopted for preventing the lateral movement of this arm j; but it is important that its point should repose upon a ledge, so as to afford the necessary support and give the requisite rigidity to the arm in order to resist the thrust of the scoring-disk 0 above the roller 19. On the feed side the feed-table q will be hinged so that it may be raised, as shown by the indicator-circle, so as to allow the arm j to be swung in and out of position. The arm j may be provided with a square shoulder j, upon which the forward end of the hinged portion of the table q may rest. The'upper curved arm h is further provided with a stop-roller 0", by which it will be prevented from swinging too far forward, and thus cause the axis of the scoring-disk 0 to be out of a vertical line with the roller p beneath it. The stop-roller r is susceptible of adjustment, so that it may rest against either the collar of the disk knife (1 or against the shaft b. In Fig. 1 it is shown bearing against the collar.

When both scoring and cutting are to be performed on a board, the several parts will be adjusted to the required distances and the board will be fed in the direction of the arrow. The disk knives d e will cut the board to the required size, while the scoringdisk 0 and roller p will cause an indentation on the surface of the board or will cut it partly through, so as to facilitate one portion of the board being bent to an angle, as is usual in this class of machinery.

By adapting other and suitable appliances to the two curved arms instead of the scorin g-disk o and roller 1) channeling, grooving,

creasing, and printing may be performed with the same apparatus.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

As an attachment to rotary strawboard-cutting machines, a ledge, an upper curved arm provided at its lower extremity with a suit- ROBERT G. NALL.

Witnesses: I

MANFIELD NEWTON, A. R. W. MASSEY. 

